/*
 *	xcal.h	3.14	1/16/91
 *
 *	Header file for the xcal program
 */

/*
 *	On 32 bit machines we can pack the date into one word
 *	if not we have to use two callbacks
 *	so undef if not true
 *	and fiddle with the definitions below
 */
/* #define	LONG_IS_32_BITS */

/* pack year and month into Cardinals */
#ifdef LONG_IS_32_BITS
#define	DatePack(w, d, m, y)	((((w)&0x7)<<21) | (((d)&0x1f)<<16) | (((m)&0xf)<<12) | ((y)&0xfff))
#define YrUnpack(v)	((v)&0xfff)
#define MoUnpack(v)	(((v)>>12)&0xf)
#define DyUnpack(v)	(((v)>>16)&0x1f)
#define WdUnpack(v)	(((v)>>21)&0x7)
#else /*  LONG_IS_32_BITS */
#define	DatePack(m, y)	((((m)&0xf)<<12) | ((y)&0xfff))
#define DayPack(w, d)	((((w)&0x7)<<5) | ((d)&0x1f))
#define YrUnpack(v)	((v)&0xfff)
#define MoUnpack(v)	(((v)>>12)&0xf)
#define DyUnpack(v)	((v)&0x1f)
#define WdUnpack(v)	(((v)>>5)&0xf)
#endif /* LONG_IS_32_BITS */

/*
 *	Foreground/Background colours
 */
typedef struct
{	Pixel	bg;
	Pixel	fg;
} Colour;

/*
 *	resources used by xcal.c
 */
struct resources
{	Boolean	debug;		/* Debug switch - currently used to fast fwd */
				/* the date */
	Boolean	alarmScan;	/* Debug switch for alarm system */
	Boolean	reverseVideo;	/* Display in Reverse video */
	Boolean	useWmTitle;	/* When displaying strips do not include a */
				/* month - year value */
	Boolean	markToday;	/* Mark today with today's colours */
	Boolean	calCompat;	/* True if handle files like xcalendar */
	Boolean giveHelp;	/* True if help is needed (default) */
	Boolean initialCalendar;/* Pop up Calendar on startup if True */
	Boolean initialEdit;	/* Pop up today's Edit on startup if True */
	Boolean	initialMemo;	/* Pop up memo box on start */
	Boolean	dateYearIs2;	/* Display year as two digits in date strip  */
	Boolean	editYearIs2;	/* Display year as two digits in edit strip  */
	Boolean	memoYearIs2;	/* Display year as two digits in memo strip  */
	String	mon[12];	/* Long month names */
	String	smon[12];	/* Short month names */
	String	day[7];		/* Day names - full */
	String	sday[7];	/* Short day names */
	String	weekly;		/* Title of weekly edit strip */
	String	opfmt;		/* format for main box */
	String	order;		/* Orders are dmy/ymd/mdy/ydm */
	int	val_order;	/* The selected order */
	Colour	marked;		/* Marked entry colour */
	Colour	today;		/* What to mark today with */
	XFontStruct *fontToday; /* We can also do Today in a different font */
	String	directory;	/* Directory under home where Calendar files */
				/* can be found */
	int	textbufsz;	/* Text buffer size for editing */
	Dimension minstripwidth; /* Minimum strip width */
	Boolean	alarms;		/* false - no alarms, true - alarms */
	XtIntervalId interval_id;/* store XtAddTimeOut value */
	int	update;		/* interval between peeks (60 secs) */
	int	volume;		/* how loud to beep the alarm 0-100 */
	int	nbeeps;		/* how many beeps for an alarm ? */
	int	autoquit;	/* Automatically delete message boxes */
	String	countdown;	/* Comma separated countdown string for alarms */
	String	cmd;		/* command to execute for every alarm */
	String	alarmleft;	/* string containing a message - %d mins left */
	String	alarmnow;	/* string containing a message - Now! */
	Boolean	useMemo;	/* true use top-level memo button, false - don't */
	Boolean memoLeft;	/* True if on left of date, false otherwise */
	String	memoFile;	/* name of the file where the memo data is stored */
	int	maxDisplayLines;/* maximum number of lines that we want to */
				/* allow the top half of a memo window to */
				/* stretch to */
};

extern	struct resources	appResources;

/*
 *	Order coding inserted into val_order
 */
#define	O_DMY		0	/* default */
#define O_YMD		1	/* Year/Month/Day */
#define O_MDY		2	/* Month/Day/Year */
#define O_YDM		3	/* Year/Day/Month */
#define	O_WEEKLEFT	4	/* Place day of the week on the left */
#define O_WEEKRIGHT	8	/* Place day of the week on the right */
#define	O_WEEKMASK	O_WEEKLEFT|O_WEEKRIGHT

/*
 *	Date structure
 */
typedef struct
{	Cardinal	day;
	Cardinal	month;
	Cardinal	year;
	Cardinal	wday;
} Date;

/*
 *	A month entry
 */
typedef struct me
{
	Cardinal	me_year;	/* map year */
	Cardinal	me_month;	/* which month */
	String		me_have[32];	/* if a file present for the day */
					/* then will have a non-zero entry */
	int		me_type;	/* type of displayed strip */
} MonthEntry;

#define ME_MONTHLY	1		/* `Normal' monthly strip */
#define ME_WEEKLY	2		/* Weekly strip */

/*
 *	An instance of the strip
 */
typedef	struct	instance
{	struct	instance *i_next;	/* next object */
	Widget	i_w;			/* the widget top level */
	Widget	i_day_label[32];	/* the handle to the label on each day */
					/* so we can change dates at night */
	Widget	i_day_info[32];		/* The info field for this date - so */
					/* we can sensitise/desensitise on editing */
	Colour	i_col;			/* what the fg/bg colours used to be */
	XFontStruct	*i_font;	/* what the font was */
} Instance;

Instance *RegisterMonth();
Instance *FindInstanceList();

/*
 *	Alarm structure
 *	one of these exists for each event in the timeout queue
 *	the list is sorted in event order
 */
typedef struct _alarm
{	struct _alarm *next;	/* pointer to next alarm */
	String	alarm;		/* alarm string */
	String	what;		/* what is message */
	int	alarm_mm;	/* hour*60 + min */
	int	alarm_state;	/* what time left to `real' timeout */
	Boolean isAction;	/* more than alarm */
} Alarm;

/*
 *	We occasionally need these
 */
extern	Widget	toplevel;
extern	Date	today;

/*
 *	Global routines
 */
void	InitAlarms();
void	MouseShow();
void	Leave();
void	Fatal();
void	SetDate();
void	AskLeave();
void	DialogPopup();
void	SetDate();
void	TextCal();
void	DoCalendar();
void	DoMemo();
void	DoWeekly();
void	MemoPoll();
void	NewMonthStrip();
void	InitMonthEntries();
void	ChangeHighlight();
void	NoEditIsPossible();
void	NoDayEditIsPossible();
void	StartEditing();
MonthEntry *GetMonthEntry();
MonthEntry *GetWeeklyEntry();
void	AlarmFilePoll();
String	ReadCalendarFile();
void	UpdateMemo();
void	PlaceStr();
String	MakeWeeklyName();
String	GetWeeklyFile();
Boolean	NeedTop();

time_t	time();